Used car retailing platform Spinny on Tuesday announced it has raised $283 million in Series E funding led by Abu Dhabi-based ADQ, Tiger Global, and Avenir Growth. With this round, the six-year-old startup has entered the unicorn club with a valuation of $1.8 billion. Gurugram-based Spinny had raised $108 million in July at a reported valuation of nearly $800 million.